A drug is injected into a patient and the concentration of the drug is monitored. The drug's concentration, C(t) 7t nilligrams after t hours is modeled by C(t)= What is the horizontal asymptote for this function? Desc 312+4 his means in practical terms. OA. y=2.33; After 2.33 hours, the concentration of the drug is at its greatest. OB. y=1.00; After 1.00 hours, the concentration of the drug is at its greatest. Oc. y=2.33; 2.33 is the final amount, in milligrams, of the drug that will be left in the patient's bloodstream OD. y=0; 0 is the final amount, in milligrams, of the drug that will be left in the patient's bloodstream.